TMP451HQDQWRQ1

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TMP451HQDQWRQ1

IC TEMP SENSOR

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規格

Part Status Active
Sensor Type Digital, Local/Remote
Sensing Temperature - Local -40°C ~ 125°C
Sensing Temperature - Remote -64°C ~ 191°C
Output Type SMBus
Voltage - Supply 1.7V ~ 3.6V
Resolution 12 b
Features One-Shot, Output Switch, Programmable Limit, Shutdown Mode
Accuracy - Highest (Lowest) ±1°C (±2°C)
Test Condition 0°C ~ 70°C (-40°C ~ 125°C)
Operating Temperature -40°C ~ 125°C (TA)
Mounting Type Surface Mount, Wettable Flank
Grade Automotive
Qualification AEC-Q100
Package / Case 8-WFDFN
Supplier Device Package 8-WSON (2x2.5)
Base Product Number TMP451

概述

Description

The TMP451HQDQWRQ1 is a high-precision, digital temperature sensor from Texas Instruments. It is designed for remote temperature sensing applications and features both local and remote temperature measurement capabilities. The sensor supports a wide temperature range, typically from -40°C to 125°C for the local sensor and -40°C to 150°C for the remote diode-connected transistor. Communication with the device is facilitated through an I2C-compatible interface, allowing easy integration with microcontrollers and other digital systems.
Key features of the TMP451HQDQWRQ1 include programmable alert functions, which allow the device to issue warnings when temperature thresholds are exceeded, and a high level of accuracy, often around ±1°C within certain ranges. It is AEC-Q100 qualified for automotive applications, making it suitable for use in demanding environments. The sensor's compact design and low power consumption further enhance its applicability in various applications, including industrial, consumer electronics, and automotive systems. Overall, the TMP451HQDQWRQ1 offers a reliable and efficient solution for precise temperature monitoring needs.

Features

The TMP451HQDQWRQ1 is a high-precision remote and local temperature sensor manufactured by Texas Instruments. Key features of this device include:
1. Temperature Monitoring: It provides both remote and local temperature sensing capabilities. The remote sensor can measure the temperature of an external diode-connected transistor, which allows for monitoring of critical points away from the sensor itself.
2. High Accuracy: The TMP451 offers high accuracy in temperature readings, typically with an error margin of ±1°C for remote diodes and ±1.5°C for the local sensor.
3. Wide Temperature Range: The device supports a broad operating temperature range, making it suitable for various applications, from consumer electronics to industrial systems.
4. Digital Interface: It features an I2C/SMBus-compatible interface for easy integration with microcontrollers and other digital systems.
5. Programmable Features: The sensor includes programmable alerts and limits, which can trigger system responses when specific temperature thresholds are exceeded.
6. Low Power Consumption: Designed for energy efficiency, it operates with low power consumption, making it ideal for battery-powered applications.
These features make the TMP451HQDQWRQ1 suitable for applications requiring precise temperature monitoring, such as in computers, servers, and telecommunications equipment.

Package

The TMP451HQDQWRQ1 is offered in a 10-pin WSON (DSBGA) package. This type of package is known for its compact size, making it suitable for space-constrained applications.

Pinout

The TMP451HQDQWRQ1 is a remote/local temperature sensor from Texas Instruments, designed for automotive applications. It typically comes in a small-outline package with a pin count of 8. The primary function of this sensor is to monitor temperature both locally (on the chip) and remotely (via a connected diode). Key pins include:
1. V+: Power supply pin.
2. GND: Ground connection.
3. SCL: Serial clock line for I2C communication.
4. SDA: Serial data line for I2C communication.
5. D+: Connection for the anode of the remote temperature sensing diode.
6. D-: Connection for the cathode of the remote temperature sensing diode.
7. ALERT: Open-drain output that signals when a temperature limit is exceeded.
8. ADD0: Address selection pin for I2C communication.
This sensor is typically used in applications where precise temperature monitoring is essential, such as in automotive systems, communication equipment, and industrial electronics.

Manufacturer

The TMP451HQDQWRQ1 is manufactured by Texas Instruments Incorporated (TI). Texas Instruments is a global semiconductor company that designs and produces a variety of electronic components. These include integrated circuits, sensors, and other semiconductor devices used in a wide range of applications such as automotive, industrial, personal electronics, and communication equipment. TI is known for its innovation in analog and embedded processing technologies.

Application

The TMP451HQDQWRQ1 is a temperature sensor commonly used in applications requiring precise thermal monitoring and management. Key areas include industrial automation, data centers, telecommunications, and consumer electronics. It is often utilized in systems for thermal protection, fan control, and temperature compensation. Its accuracy and digital interface make it suitable for integration into complex systems such as CPUs, GPUs, and other semiconductor devices to ensure optimal performance and prevent overheating.

Equivalent

The TMP451HQDQWRQ1 is a temperature sensor from Texas Instruments. Equivalent products include the LM75 series from NXP, the ADT7410 from Analog Devices, and the MCP9808 from Microchip Technology. These sensors offer similar temperature sensing capabilities and I2C interfaces. However, specifications like accuracy, operating temperature range, and supply voltage may vary, so it's important to compare these features based on specific application needs.

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